Is Britney Spears Engaged?

Did Charlie Ebersol put a ring on it already?!? Britney and her boyfriend of six months are on a Hawaiian vacation with her two sons and was spotted showing off a diamond ring on her ring finger on her way to the pool. There is no official comment on whether they are officially engaged but Britney did just recently say that she was the happiest she had ever been and that she would love to get married again.